Sensor



FIG. 1 is a top perspective view of a sensor showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a left side elevation view thereof, the opposite right side being a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof. 

The ornamental design for a sensor, as shown and described. 